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Updated: Jun 23, 2026

Optical Trapping of Nanoparticles

Optical Trapping of Nanoparticles

Published on: January 15, 2013

嵌入纳米光子腔中的离子的控制和单射读取

Jonathan M Kindem^1,2,3,4,5,6, Andrei Ruskuc^1,2,3, John G Bartholomew^1,2,3,7

¹Thomas J. Watson, Sr, Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA, USA.

|April 10, 2020

概括

研究人员开发了一个新的固态平台, 这一突破使得长自旋连贯性和高保真度读数成为量子计算和安全通信的关键.

科学领域:

量子信息科学
固态物理
纳米光子学

背景情况:

量子网络需要可扩展的光物质接口来实现纠分布.
像量子点这样的固态发射器面临着扩展的挑战.
稀土离子提供连贯的光学和旋转过渡,但需要集成到可扩展的平台中.

研究的目的:

用单个稀土离子展示量子网络的可扩展固态平台.
在纳米光子腔中实现长自旋连贯性和高保真性单射读取.

主要方法:

将单个伊特-171 (171Yb3+) 离子合到伊特甲酸盐中的纳米光子腔.
使用对磁场波动不敏感的光学和旋转过渡.
执行旋转初始化,连贯操纵和单次光学读取.

主要成果:

在空腔合的171Yb3+离子中实现了低于1兆赫的光线宽度和超过30毫秒的自旋相干时间.
证明了高效的旋转初始化和一次性读取,条件准确率高于95%.
在固态系统中展示了第一阶段不敏感的光学和旋转转变的潜力.

结论:

单个稀土离子与纳米光子腔相结合, 代表了量子网络的有希望的固态平台.
已证明的连贯性和读取精度符合量子互联网应用的关键要求.
这项工作为可扩展的量子通信和计算技术铺平了道路.

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